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Finding the Fourth Proportional to 63,691.96, 87,900.18 and 41,078.04

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Solution

The fourth proportional to 63,691.96, 87,900.18 and 41,078.04 is: 56,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,691.96 : 87,900.18 = 41,078.04 : x
  2. Step 2: Convert to fraction form
    63,691.96/87,900.18 = 41,078.04/x
  3. Step 3: Cross multiply
    63,691.96x = 87,900.18 × 41,078.04
  4. Step 4: Simplify right side
    63,691.96x = 3,610,767,110.05
  5. Step 5: Solve for x
    x = 3,610,767,110.05/63,691.96
  6. Step 6: Final answer
    x = 56,691.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.